This is actually really good to demonstrate with magnets. Most people will say that a magnet will exert a force on a piece of iron, but the iron will not exert any force on the magnet. However, you can see if the iron is held securely in one position and the magnet is placed nearby, the iron will exert a force on the magnet, closing the distance. Also, if neither the magnet or the iron are secured, they will move towards each other at the same acceleration (assuming no friction or equal weight).
A non-scientist's muse: If the mutual attraction between the two bodies is equal and opposite, even when the mass of one body changes drastically and thus increases its attractiveness, then gravity isn't a property of either body but of the relationship between them.
Why do I never bump into these interviewers asking questions to random people on the street? It's nearly always about political opinion or science, opinion can't really be "wrong" and I would ace science!
I guess that would make for a boring video clip though :p
Perhaps one of the larger obstacles for people is conceptualizing how multiple laws interact with each other. All three laws could be identified in any given situation.
Is this not closer to the second law? if net force=mass(acceleration), and neither body accelerates towards the other, net force must be zero...right?
@plaustrarius This is a good question, but the bodies are accelerating towards each other. In fact there is a net force on each. But the point is the size of the force is the same on each body, which is what Newton's third law says.
With your own explanations, the moon does not orbit the Earth. Rather, a point between the Earth and the moon (vastly closer to the Earth, of course).
But when the earth is in relation to another object, it'll have a lot more pull than when the moon is interacting with a 3rd object. Context.
Each person is right when it comes to colloquial understanding, but when you get down to the knitty gritty, he's very right. The problem is understanding the difference between the two, and how the knitty gritty plays out in other contexts.
@1veritasium so the earth doesnt move as much because of its inertia - it takes more force to move more mass? So really, because the constant is quite small, gravity really is a very weak force? We just notice it so much in space so much because of the huge differences in mass between attracted objects?
I just want to say that I love how devoted you are to teaching through this medium. Nothing is ever quite over my head, but is complex enough to remain interesting. Also, you're activity in the comments is commendable.
I knew it! The forces have to be the same, or else the moon would get pulled into the earth. ( I cheated I'm a physics student :]) I love the way you portray the videos, very good for people who have the same ideas as the people depicted in the video. Thanks for great videos Veritasium.
@ckorweng1 The earth and the moon both revolve around their shared centre of mass. The centre of mass is much, much closer to the earth than it is to the moon because the earth is so much more massive, so it appears as though the earth stays still relative to the moon, but in reality it is also moving, just not very much.
The same is true for the sun and earth - the sun actually wobbles slightly as it revolves around the centre of mas.
Is this just explained with "F = G.M1.M2/r^2"? No matter the mass, you take both into account. So the force 'Earth to Moon' and the force 'Moon to Earth' basically uses the same numbers in such a way that they are equal? M1 and M2, no matter the order, will still be the same, so the force will be the same. Right?
where is this guy? why do just random people all look so smart, here in america this wouldve been a group of overweight people saying DAH MOON GOES ROUND DER EARTH
Hah! It's a trick question.'What makes the Moon go around the Earth' The moon's own inertia, as it formed, caused it to go around the Earth, as it was insifficient to allow it to break out of orbit. Perhaps 'What keeps the Moon in orbit around the Earth?' might have elicited a few better responses. Though they now tell us it is moving away very slowly. So not perfectly balanced, but damn close. ;¬)
I am feeling Newton's third law in my butt at the moment as I am sitting down and I am exerting and equal and opposite force on my chair as it is exerting on me - I am not accelerating so there is no net force on me.
cmon man , they told you that the mass of earth is more , there is actually qualitatively no difference in mass and inertia as inertia is itself a property of matter , the more mass the more inertia !!!!!!! the peaple you questioned werent realy scientists so they used the term mass instead of inertia !!!!! since both are same ! they were correct werent they ?
Why can a space rocket just turn of its engines then once it gets out into space shouldn't newtons third law just keep it going without the need to burn more fuel?
@fl1pm1ster Because they're in motion to the sideway also. Let's just assume the earth stands still in comparison to the moon (which it almost does because of inertia) The moon is always falling towards the earth however because the moon is also falling to the right over the leaning round earth it's not getting any closer. Just like if you throw a ball down a hill it might always stay at the same distance from the ground but it's still falling. The hill has an ending though.
@fl1pm1ster It is as if all the forces acting on the two objects have reached a kind of equilibrium which leave them at the same distance and same speed.
@fl1pm1ster Two objects, 'Static' and 'Orbit'. Static, for this example, is stationary, and Orbit is moving sideways, or perpendicular. Both Static and Orbit exibit a common pulling force which pull each other together. The reason Orbit doesn't crash into Static is because the speed which orbit is travelling is just right to keep it from crashing into Static or flying away from Static. They are both falling into eachother but the sideways movement keeps them from getting any closer.
Ok, so what your saying is that the earth is pulling the moon just as much as the moon is pulling the earth, but since the Earth has a large mass, the pull is very small and is not noticed, right?
@WolfClant This is a good question, and the answer is yes IF they are not moving at all perpendicular to the axis that connects them. But a lot of things are moving perpendicular to the axis that joins them so they orbit rather than colliding with each other.
Haha no dudes! The speed limit is neither the roman numeral c or censorship XD
Its the constant of the famous equation E=mc^2 where c represents the speed of light, he's implying that the universal speed limit is c which equals approximately 3 hundred million meters per second, although I kinda disagree with that... but anyway :P
I understood third Newton's law. I would have probably answered correctly the questions you were asking to the people in your video. Yet, the last diagram helped me understand completely the idea (the fact that every "kilogram" in one mass is pulled by every other "kilogram" in the other mass and viceversa, hence the force resulting is proportional to the multiplication of both masses).
Your videos should be watched in school, this would be a much better world.
I believe that for every action there is an equal and opposite reaction.
But why is it when i punch a cloth that is hanging on a rope I don't feel the force that I exerted to the cloth. But when i punch the wall I can feel the force that I exerted, coming back to me.
The way you word your question is incorrect. "How does that compare in terms of size, to the force the Earth exerts on the moon." 0:45 Force isn't a measurement of size as size would denote volume. Force is measured in Newtons. Now, the force of gravity on Earth is 9.8 Newtons for each Kilogram of weight. The force of gravity on the moon is 1.63 Newtons for each Kilogram of weight. Since the moon's mass is 7.35 x 10^22 Kg and the Earth's is 5.88 X 10^24 Kg, the Earth's pull on the moon is
soo.. the earth is pulling the moon along.. but the moon will never reach the earth because it keeps aiming at the wrong direction? shouldnt it be trailing the earth?
i wonder what would happen if the moon have a lot more gravity then the earth...
what about the sun's gravitational force on the moon? why doesnt it affect the moon? it keeps earth on orbit
what is the opposing force when you push an object? does it push itself away from you?
I have an issue with getting this all the way into my spleen..
i did not have a problem with Newton's 3rd law when the objects are in contact - for example normal reaction forces on structural components/bouncing balls, but when it comes to gravity, I have a harder time visualizing it.
I guess this is a good precursor to explaining one of the ways how astrophysicists are able to determine facts about exoplanets - by observing the wobble in their suns.
Am I right in saying Newtonian mechanics is true in the sense that it's a good approximation with speeds a lot less than c and in absence of a huge gravitational field?
Oh, so this video's about how powerful the gravitational pull is on each other - Not about why the Moon goes around the earth.. Right? I mean, the Moon doesn't pull the Earth around because it's mass is smaller, but if there were oceans on the moon it would have waves as big as ours. Am I getting it?
okay i may sound like an idiot, but your explanation is correct, because if the earth's pull is bigger, then the moon would be sucked into earth, right?
@nicmobass Actually not necessarily. A few people said something like this. The forces don't *need* to be equal for the moon to stay in its orbit, but they are. I think this idea comes from thinking that there are two forces on the moon which are balanced (one pulling in, the other pushing out). This idea is incorrect! There is only one force on the moon and it's towards the Earth. It makes the moon accelerate towards the Earth, but the moon never gets closer for the same reason astronauts orbit
@1veritasium Actually, the moon is in constant free-fall towards the earth. It's true. The reason it never crashes into us, is because for every mile the moon falls towards the earth, it moves on it's trajectory by 8 inches (the curvature of the earth).
nice videos but I think you should be more careful about the "inertia" thing...I think this confuses and keeps people believing in fictional forces. Again nice videos
I love your videos, but have a question about one of your animations. The animation of the moon orbiting the earth shows it going clockwise. Doesn't the moon rotate around the Earth in a counter-clockwise fashion? Hence New Moon, Waxing Crescent, First quarter, etc. This animation would actually create the phases of the moon in reverse and go from a new moon to a waning crescent than to a third quarter.
@Toastynhere hmm, I guess it depends on how you are looking, down on the North pole or down on the South pole (or at some angle to the Earth's axis of rotation). To be honest I didn't much think about the direction the moon was going. But well spotted! I will keep this in mind in future.
Great information. Thank you for educating me in a manner that is easy to comprehend. Oh, it's rather impressive how many years you "shave" off when you are beardless. (:
This is actually really good to demonstrate with magnets. Most people will say that a magnet will exert a force on a piece of iron, but the iron will not exert any force on the magnet. However, you can see if the iron is held securely in one position and the magnet is placed nearby, the iron will exert a force on the magnet, closing the distance. Also, if neither the magnet or the iron are secured, they will move towards each other at the same acceleration (assuming no friction or equal weight).
vampiracy 11 hours ago
A non-scientist's muse: If the mutual attraction between the two bodies is equal and opposite, even when the mass of one body changes drastically and thus increases its attractiveness, then gravity isn't a property of either body but of the relationship between them.
Chewie443 1 day ago
So I'm exerting the same pull on the universe as it is to me!?!?
AWESOME!
zelda0is0so0cool 1 day ago
I felt something in my spleen...sure ain't Newton's Third Law though...
scottmarshall456 1 day ago
It's funny that if the Moon exerted a smaller force on Earth, it would cause a lot of logical inconsistencies
andreirocks1992 1 day ago
You're the best! P.S I'm losing weight and i think we look similar, if i look like you when i lose my weight I'll be very happy! (compliment)
LaenPvP 1 day ago
I literally yelled IDIOTS !
renamorcen 2 days ago
Why do I never bump into these interviewers asking questions to random people on the street? It's nearly always about political opinion or science, opinion can't really be "wrong" and I would ace science!
I guess that would make for a boring video clip though :p
Viruzzz 2 days ago
Perhaps one of the larger obstacles for people is conceptualizing how multiple laws interact with each other. All three laws could be identified in any given situation.
rlee8807 2 days ago
im so happy that i found this guy. i really like physics
Living2TheMax2 2 days ago
Does that mean we are exerting the same force on the sun, as it does on us?
st08st08 2 days ago 2
@st08st08 correct.
1veritasium 2 days ago
@1veritasium Mind = blown
zelda0is0so0cool 1 day ago
Include our Spleens? That's kinda creepy...
rhyser100 2 days ago
This has been flagged as spam show
1 sec explanation: F=Gm1m2/r^2.
arthurthegreat 2 days ago
0:34 Women? So THAT'S why they are so grumpy a certain time of the month >.>
camelCaseFTW 2 days ago
Is this not closer to the second law? if net force=mass(acceleration), and neither body accelerates towards the other, net force must be zero...right?
plaustrarius 3 days ago
@plaustrarius This is a good question, but the bodies are accelerating towards each other. In fact there is a net force on each. But the point is the size of the force is the same on each body, which is what Newton's third law says.
1veritasium 3 days ago
@1veritasium They both accelerate. This acceleration is causing the orbitting action, however, center of mass is much much closer to the earth.
ertyxtras 3 days ago
This channel is awesome. I'm SOOO subscribed.
RafaellaszBill 3 days ago
With your own explanations, the moon does not orbit the Earth. Rather, a point between the Earth and the moon (vastly closer to the Earth, of course).
Plastonick 3 days ago
@Plastonick It does.
Both the Earth and the Moon orbit around the common center of gravity, which is slightly outside the earth's core.
PykohYT 3 days ago
Black Holes... Everything in science falls apart
MickaleRoberts1 4 days ago
I feel it in my spleen!
alfiestoppani 5 days ago
this doesnt apply to black holes though, does it?
foolishhim 6 days ago
My spleen hurts.
vinivinus 6 days ago
He went from nobeard to beard to no beard again.
CombustibleLemonsInc 1 week ago
But when the earth is in relation to another object, it'll have a lot more pull than when the moon is interacting with a 3rd object. Context.
Each person is right when it comes to colloquial understanding, but when you get down to the knitty gritty, he's very right. The problem is understanding the difference between the two, and how the knitty gritty plays out in other contexts.
Son0fHobs 1 week ago
@1veritasium so the earth doesnt move as much because of its inertia - it takes more force to move more mass? So really, because the constant is quite small, gravity really is a very weak force? We just notice it so much in space so much because of the huge differences in mass between attracted objects?
Matticusjk 1 week ago
Dude, no beard : (:(:(
RyanTheSleeper 1 week ago in playlist Uploaded videos
yes yes.I CAN FEEL IT MY SPLEEN MUAH HA HA HA HA
kindpotato 1 week ago
Speed limit C as in the speed of light!
hatgrass 1 week ago
"hey, babe. i'm attracted to you, and according to Newton, you're equally attracted to me."
nekoninja1234 1 week ago in playlist More videos from 1veritasium
Is it just me, or were the people you interviewed a bit ignorant with science?
I'm not sure why the answer wasn't obvious, and that everyone got it wrong.
Yea for Science!! :D
kaosmaster 2 weeks ago
umm, wait, i think i m feeling the newton's law in my core/spleen, naw its just my bowel movments.
flashinsam 2 weeks ago
I just want to say that I love how devoted you are to teaching through this medium. Nothing is ever quite over my head, but is complex enough to remain interesting. Also, you're activity in the comments is commendable.
robbymontague 2 weeks ago 18
@robbymontague Thank you!
1veritasium 2 weeks ago 6
The force is the same, its the acceleration that is different.
conartist1991 2 weeks ago
1:35 speed limit c . That is a Einstein street .
Ubazr 2 weeks ago 51
@Ubazr This made me laugh. Hard
TheNoorac 3 days ago
I can feel newton's third law now, its became my blood the moment i press enter
arimn5583 2 weeks ago
Where was this video taken?
I think everyone with secondary education should know it.
zealzonix1 2 weeks ago
I knew it! The forces have to be the same, or else the moon would get pulled into the earth. ( I cheated I'm a physics student :]) I love the way you portray the videos, very good for people who have the same ideas as the people depicted in the video. Thanks for great videos Veritasium.
AhketRa 2 weeks ago
noo my spleeeen
Raicuparta 2 weeks ago
Still doesn't explain why the moon rotates around the earth if both the moon and earth exerts the same gravitational force.
ckorweng1 2 weeks ago
@ckorweng1 Please refer to my video "Why Does the Moon Orbit Earth?" /watch?v=zN6kCa6xi9k
1veritasium 2 weeks ago 2
@ckorweng1 The earth and the moon both revolve around their shared centre of mass. The centre of mass is much, much closer to the earth than it is to the moon because the earth is so much more massive, so it appears as though the earth stays still relative to the moon, but in reality it is also moving, just not very much.
The same is true for the sun and earth - the sun actually wobbles slightly as it revolves around the centre of mas.
Miscmanismiscing 6 days ago
kinda ashamed i didnt know exactly what newtons 3rd law means , i can say, this vid changed my life . thank very much !
tomoko8900 2 weeks ago
the speed limit keeps on changing
TheGuyWithTheFace1 2 weeks ago in playlist Uploaded videos
Is this just explained with "F = G.M1.M2/r^2"? No matter the mass, you take both into account. So the force 'Earth to Moon' and the force 'Moon to Earth' basically uses the same numbers in such a way that they are equal? M1 and M2, no matter the order, will still be the same, so the force will be the same. Right?
SillyEddyPhotography 3 weeks ago
@SillyEddyPhotography
Yep, exactly right.
fateola 2 weeks ago
Funny! Funny! I think my spleen peed a little!
mrhaislip 3 weeks ago
I felt it settle deep in my... colon. Is that weird?
jondafurb 3 weeks ago
And remember kids, this is the same reason a 5 pound magnet has the same force as a 1 ounce magnet.
Godznrg4u 4 weeks ago
Am i just really smart? Or are these people not the brightest???
libbybkul 1 month ago
I FEEL IT IN MAH SPLEEN!!!!!!
MyWorldOfBlocks 1 month ago
Speed Limit
The speed of light 0:18
BurntheJacket 1 month ago 4
@BurntheJacket lol I missed that, well spotted!
HigherEnlightment 3 weeks ago
I am beginning to wonder if he really is in Australia and not America.
pielover267 1 month ago
@pielover267 ANZ atm and gum trees, looks pretty Australian
JackPriceyPrice 2 weeks ago
where is this guy? why do just random people all look so smart, here in america this wouldve been a group of overweight people saying DAH MOON GOES ROUND DER EARTH
Sykopath96 1 month ago
Did she say the moon effects women?
Had to leave.
shadeslate 1 month ago
Hah! It's a trick question.'What makes the Moon go around the Earth' The moon's own inertia, as it formed, caused it to go around the Earth, as it was insifficient to allow it to break out of orbit. Perhaps 'What keeps the Moon in orbit around the Earth?' might have elicited a few better responses. Though they now tell us it is moving away very slowly. So not perfectly balanced, but damn close. ;¬)
wordreet 1 month ago
the moons motion is easier to explain with the impuls momentum
alain001 1 month ago
are you kidding me? they dont even know about newtons third law? or am i just too nerdy
joeyouyang 1 month ago
I am feeling Newton's third law in my butt at the moment as I am sitting down and I am exerting and equal and opposite force on my chair as it is exerting on me - I am not accelerating so there is no net force on me.
johncrwarner 1 month ago
Like this if your spleen DOES feel Newton's 3rd law.
AcousticPlusOne 1 month ago
cmon man , they told you that the mass of earth is more , there is actually qualitatively no difference in mass and inertia as inertia is itself a property of matter , the more mass the more inertia !!!!!!! the peaple you questioned werent realy scientists so they used the term mass instead of inertia !!!!! since both are same ! they were correct werent they ?
shumazo 1 month ago
Why can a space rocket just turn of its engines then once it gets out into space shouldn't newtons third law just keep it going without the need to burn more fuel?
icemonkey002 1 month ago
speed limit: C ??? i dont get it...'
SmokiestPanda1 1 month ago
@SmokiestPanda1 C stands for the speed of light ^^
n1ghtwish4ever 1 month ago
@n1ghtwish4ever aah, ofc, i suffer from spontanious retardation...
SmokiestPanda1 1 month ago
@OldSchoolSkill They also know more than people that generalize...
cooROPyoBODY 1 month ago
Does that mean that I am applying the same gravity pull onto Earth as Earth onto me?
Anastasiaology 2 months ago 14
@Anastasiaology yes.
1veritasium 2 months ago 10
@1veritasium I don't agree. ;¬)
wordreet 1 month ago
@1veritasium so i kinda levitate very little ?
sdfefde 1 week ago
loving the speed limit sign...
thewii552 2 months ago
so why do things orbit instead of eventually colliding instead?
fl1pm1ster 2 months ago
@fl1pm1ster Because they're in motion to the sideway also. Let's just assume the earth stands still in comparison to the moon (which it almost does because of inertia) The moon is always falling towards the earth however because the moon is also falling to the right over the leaning round earth it's not getting any closer. Just like if you throw a ball down a hill it might always stay at the same distance from the ground but it's still falling. The hill has an ending though.
musicplayah 2 months ago
Comment removed
Thomaxonal 2 months ago
@fl1pm1ster It is as if all the forces acting on the two objects have reached a kind of equilibrium which leave them at the same distance and same speed.
Thomaxonal 2 months ago
This has been flagged as spam show
@fl1pm1ster Two objects, 'Static' and 'Orbit'. Static, for this example, is stationary, and Orbit is moving sideways, or perpendicular. Both Static and Orbit exibit a common pulling force which pull each other together. The reason Orbit doesn't crash into Static is because the speed which orbit is travelling is just right to keep it from crashing into Static or flying away from Static. They are both falling into eachother but the sideways movement keeps them from getting any closer.
Thomaxonal 2 months ago
Ok, so what your saying is that the earth is pulling the moon just as much as the moon is pulling the earth, but since the Earth has a large mass, the pull is very small and is not noticed, right?
Awesomecraft99 2 months ago
don't know much because i'm a 5th grader anyway awesome video
MCBeybladerHuskies 2 months ago
what is it with you and our spleens?
Immortal242 2 months ago
CAN YOU FEEL IT, CAN YOU FEEL IT, CAN YOU FEEL IT DUN DUN DUNDUN
JoeOf91 2 months ago
if they go towards each other, shouldn't they collide?
WolfClant 3 months ago
@WolfClant This is a good question, and the answer is yes IF they are not moving at all perpendicular to the axis that connects them. But a lot of things are moving perpendicular to the axis that joins them so they orbit rather than colliding with each other.
1veritasium 3 months ago 6
@1veritasium oh, now i remember, the circular motion combined with the pitagoras formule
WolfClant 3 months ago
speed limit c
BMXandTRIALS25 3 months ago
I like how the speed on the speed limit sign is c for light speed. Lol.
3dflowstudios 3 months ago
Haha no dudes! The speed limit is neither the roman numeral c or censorship XD
Its the constant of the famous equation E=mc^2 where c represents the speed of light, he's implying that the universal speed limit is c which equals approximately 3 hundred million meters per second, although I kinda disagree with that... but anyway :P
Fun video! :D
JohnnyFrizz 3 months ago
I understood third Newton's law. I would have probably answered correctly the questions you were asking to the people in your video. Yet, the last diagram helped me understand completely the idea (the fact that every "kilogram" in one mass is pulled by every other "kilogram" in the other mass and viceversa, hence the force resulting is proportional to the multiplication of both masses).
Your videos should be watched in school, this would be a much better world.
IvanJDSTRock 3 months ago
Why did you censor the speed limit?
UnderDog280 3 months ago
lol the speed sign in the back is a roman numeral (C=100)
Baboonaiih 3 months ago
I believe that for every action there is an equal and opposite reaction.
But why is it when i punch a cloth that is hanging on a rope I don't feel the force that I exerted to the cloth. But when i punch the wall I can feel the force that I exerted, coming back to me.
sorry if I didn't clearly understand your video
Moongazerr 3 months ago
This has been flagged as spam show
80 times greater than the moon's pull on the earth.
mmanna82 3 months ago
The way you word your question is incorrect. "How does that compare in terms of size, to the force the Earth exerts on the moon." 0:45 Force isn't a measurement of size as size would denote volume. Force is measured in Newtons. Now, the force of gravity on Earth is 9.8 Newtons for each Kilogram of weight. The force of gravity on the moon is 1.63 Newtons for each Kilogram of weight. Since the moon's mass is 7.35 x 10^22 Kg and the Earth's is 5.88 X 10^24 Kg, the Earth's pull on the moon is
mmanna82 3 months ago
How do u explain human gravity towards earth..
dangerousage19 4 months ago
omagawd MIND. BLOWN.
Dancingvermonter 4 months ago
haha speed limit c
mitchblahman13 4 months ago
2:31 the speed limit is the speed of light motherfucker!
CcanCcaglar 4 months ago
What degree do you have? and from what uni?
THEROLLINNGDICE99 4 months ago
Should probably slow down from c before that speedbump... :)
sirjim2009 4 months ago
Can you feel it in your spleen?......dude.....I'm stealing that. ; )
t3tsuyaguy1 4 months ago in playlist More videos from 1veritasium
great
khaled1988able 4 months ago
Derek, i got a question.
If you go on the streets to ask people how long do you need people who can answer at least intellegent enough to not seem like complete idiots?
do you just go on university grounds?
theflavasava2 4 months ago
Speed limit C? Read the newspaper, the joke's on you now mutha fucker!
poland1230 4 months ago
soo.. the earth is pulling the moon along.. but the moon will never reach the earth because it keeps aiming at the wrong direction? shouldnt it be trailing the earth?
i wonder what would happen if the moon have a lot more gravity then the earth...
what about the sun's gravitational force on the moon? why doesnt it affect the moon? it keeps earth on orbit
what is the opposing force when you push an object? does it push itself away from you?
How does this apply to magnets..
im going to sleep..
notfree25 5 months ago
you idiot its all fake u fuck
TheJashrock 5 months ago
Speed Limit C
Leo413623 5 months ago
sooo, the speed limit is the speed of light?
danoodledooddle 5 months ago
Oh wait ! I just found an ancient document which says, Newton's sixth law of motion : Compression and Rarefaction gives Satisfaction.
buzzYNWA 5 months ago
Here's the 5th law of motion : A pole attracts a hole with exactly the same amount of force as a hole attracts a pole.
buzzYNWA 5 months ago
Newton's never published 4th law of motion : In and out motion gives a white lotion.
buzzYNWA 5 months ago
my spleane hurts, that fig newton just hit me
jjtheslayer69 5 months ago
I have an issue with getting this all the way into my spleen..
i did not have a problem with Newton's 3rd law when the objects are in contact - for example normal reaction forces on structural components/bouncing balls, but when it comes to gravity, I have a harder time visualizing it.
test123ok 6 months ago
@test123ok is there a way to simulate an experiment using magnets.. since the effects are exaggerated ?
test123ok 6 months ago
I guess this is a good precursor to explaining one of the ways how astrophysicists are able to determine facts about exoplanets - by observing the wobble in their suns.
skullersab 6 months ago
Am I right in saying Newtonian mechanics is true in the sense that it's a good approximation with speeds a lot less than c and in absence of a huge gravitational field?
JaySmith91 8 months ago
god you are a bad drawer
jpgrim3004 8 months ago
I never felt any law settle in my spleen. It hurts. I need a spleen-estomy. Jerk. XD
DactaDork 8 months ago
I started to take a trip on the bike path, and in no TIME, I was finished.
1965cyclone39 8 months ago 11
@1965cyclone39 lol
1veritasium 8 months ago 4
What will happen if you drive with 299,792,458 meters per second? Can you say what will happen if you disobey a law of nature ?
Arghira 8 months ago
4kg of milk.
TH4TCHER 9 months ago
Oh, so this video's about how powerful the gravitational pull is on each other - Not about why the Moon goes around the earth.. Right? I mean, the Moon doesn't pull the Earth around because it's mass is smaller, but if there were oceans on the moon it would have waves as big as ours. Am I getting it?
saints360row 10 months ago
the guy in the black shirt has gotten closest in all of these videos.
ConnorWilsonG 10 months ago
wow ppl actually know the newtons 3rd law! Coool! I'd be way more surprised if this was filmed in the states.:P
laury150 10 months ago
okay i may sound like an idiot, but your explanation is correct, because if the earth's pull is bigger, then the moon would be sucked into earth, right?
nicmobass 11 months ago
@nicmobass Actually not necessarily. A few people said something like this. The forces don't *need* to be equal for the moon to stay in its orbit, but they are. I think this idea comes from thinking that there are two forces on the moon which are balanced (one pulling in, the other pushing out). This idea is incorrect! There is only one force on the moon and it's towards the Earth. It makes the moon accelerate towards the Earth, but the moon never gets closer for the same reason astronauts orbit
1veritasium 11 months ago 2
@1veritasium Actually, the moon is in constant free-fall towards the earth. It's true. The reason it never crashes into us, is because for every mile the moon falls towards the earth, it moves on it's trajectory by 8 inches (the curvature of the earth).
mmanna82 3 months ago
@nicmobass yeah, you sound like an idiot.
CakesnakeFilms 2 months ago
If you increase the mass of the moon, tides would become more, same or less active? thanks
FTWization 11 months ago
@FTWization more - the moon would exert a greater gravitational pull on the Earth (and the Earth would have a greater pull on the moon)
1veritasium 11 months ago
nice videos but I think you should be more careful about the "inertia" thing...I think this confuses and keeps people believing in fictional forces. Again nice videos
Gspiderpig 11 months ago
I love your videos, but have a question about one of your animations. The animation of the moon orbiting the earth shows it going clockwise. Doesn't the moon rotate around the Earth in a counter-clockwise fashion? Hence New Moon, Waxing Crescent, First quarter, etc. This animation would actually create the phases of the moon in reverse and go from a new moon to a waning crescent than to a third quarter.
Toastynhere 11 months ago
@Toastynhere hmm, I guess it depends on how you are looking, down on the North pole or down on the South pole (or at some angle to the Earth's axis of rotation). To be honest I didn't much think about the direction the moon was going. But well spotted! I will keep this in mind in future.
1veritasium 11 months ago
Keep an eye on the speed limit sign ;)
Wallabebe 1 year ago 29
i knew the answer to that Q why didnt thay come find me lol its equal outher wise we would all be DEAD !!
PlayFastDieLast 1 year ago
@PlayFastDieLast hmmm, I'm not sure we would be dead if this weren't true.
1veritasium 11 months ago
i know what you're thinking.. no really :)
ezekiel0920 1 year ago
Greaaaaat!!
wanonaw 1 year ago
I love your diagrams!!! its funny and helps me to understand more quickly haha
JkSis27 1 year ago
@JkSis27 Thank you! You know they look incredibly childish, but it takes me ages just to make them legible.
1veritasium 11 months ago
Speed limit: C.
Fast bike path.
Serious taco wheel on that speed bump.
ed4wb 1 year ago
Great information. Thank you for educating me in a manner that is easy to comprehend. Oh, it's rather impressive how many years you "shave" off when you are beardless. (:
ghrpdx 1 year ago
wow. this gave me such a "ah ha!" moment. thanks!
meatstack 1 year ago
These videos are great.
arctic180 1 year ago
Great job guys! Keep going!
ParbelleCondorcet 1 year ago
AAARRGGHHH! My spleen ruptured!
Not realy, but i liked the video!
Keep up!
BalthazarL 1 year ago
eeehhh no... i don't feel it
matbonucci 1 year ago
Dont know about my spleen, but i fully understand now, thanks :)
ZionzSavior 1 year ago
Thanks for your funny and interesting videos! :)
kynareth 1 year ago